Hardwired logic is programmable and easily changed.

• A. True
• B. False
• C. Depends on the hardware
• D. Cannot be changed

Answer: (B)

Hardwired logic means the control behavior is fixed by the physical wiring of relays, contacts, and gates. Since there’s no software involved, there’s nothing to edit in a running system; changes require rewiring or replacing hardware. That’s why hardwired logic isn’t programmable and isn’t easily changed—the opposite of the statement. If you want logic that you can modify quickly, you’d use software-driven logic in a PLC or other programmable device, where changes are made in code and downloaded rather than rewired. In practice, the term distinguishes fixed hardware behavior from software-based logic that’s meant to be adjustable.